Sans has been training to be in the Royal Guard for years, spending hours upon hours of training and playing out fake battle scenarios in an effort to be chosen by the Queen. Recently, Alphys has pushed some of the responsibility of teaching the young pupil onto his older brother, Papyrus, to strengthen their bond as family. He's much too lazy to fight, but he may have something else in mind.. UnderSwap Fontcest. Deal with it.